The Coelomocytes of Nereid Polychaetes

  • Denis G. Baskin


The coelomic fluids of most polychaetes, or marine annelids, contain numerous mobile cells which have phagocytic abilities. Many investigators have observed that coelomocytes of several species of polychaetes take up foreign matter and have suggested that they probably remove particulate wastes. This applies equally to nereids (Dehorne, 1922a,b; Romieu, 1923; Fretter, 1953; Kermack, 1955; Dales, 1961, 1964; Marsden, 1963, 1966). Recent fine-structural studies support the view that coelomocytes of nereid polychaetes have a phagocytic role, which has still to be defined adequately in terms of cellular defense mechanisms. Nevertheless, investigations of their phagocytic responses are important in view of current ideas on the significance of the relationship of primitive phagocytic cells to origins of immune mechanisms (Burnet, 1968, 1970).


Coelomic Fluid Phagocytic Ability Phagocytic Response Perinuclear Zone Pomona College 
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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • Denis G. Baskin
    • 1
  1. 1.Department of Zoology Seaver LaboratoryPomona CollegeClaremontUSA

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